Wall-cleaner.



R ROSA WALL CLEANER. APPLICATION FILED MAYBI, 1912.

' Patented Nov. 12, 1912.

r IIIJIIIIIIII lllilrilllflllllllll' A Roman o /"?0 s a, 11v VENTOR.

AK my I BY ATTI'ORNEY "sociatin-g "on 'With asecond shaft and drivingwheel on UNITED STATES PATENT OFFICE.-

ROMANO, Rosafor LOUISVILLE, KENTUCKY.

WALL-CLEANE Specification of Letters Patent. Patented Nov-12,1912.Application'fl led ma 31,1912. Seria1-No.-700,904.

Toallpwhont it may concern i v Be it known that I; Romano Rosa, a.citizen of the United States, residing at Lou'i'sville in' thel Stateof Kentucky, have ,in-.

of-vvhich thetollovving' is a s'pe ification.v

iMy invention relates particu a'rlylto wall cleaners driven by motorsmounted ona movable stand and has for' 'its object toinirow thestrnetureandeifieierioy thereof. i It consists of novelfeatures andparts and combinations of the same which will be more .fully'describedhereinafter: and then pointed out inthe c1aim i. I

A practical embodiment of .my invention is shown in the accompanyingdrawings, in hich- Fignre Fig, 2, an

3, a detail secti'o'nalview' on the line '3 3 of Fig. "1.

' My invention consists essentially a in as theshaft'of a 'motor a fixeddriving wheel-and a swinging arm provided saidiarm at the operatingpoint.

It further consists in mounting said. motor on a movable truck, inmaking said armadextensible to facilitate-t the placement and adjustmentof the drlvln'g cha1n,'

justably' and in providing'a handle onthe outer part of said arm forcontrolling the same.

The motor 2 is mounted on the movable truck-'1 and'is provided with theshaft 8. To the shaft 3 is fastened the main driving Wheel 5,'preterablya sprocket Wheel; with itslhub slipped CV61 the sleeve 4. The sleeve 4:isiadapted' to contain the balls 6 which form a ball-bearing for the arm7-. The arm vented: a new and Improved all-Cleaner;

1 is a vertical longitudinal cross-Y section of my device, partly inelevation;

end elevationthereof; and Fig. fl

.lng or cl ttlng tool 1n its bite onthe Wall without pushlng strain onthe part ofthe.

7 has an 'adjnstable extension 8, which-is fixed by the set-screw 11.being tightened mto one. of the teeth-10. This adjustment .allows thesprocket chain; 17 to be readily tightened or'removed. Theextension 8 isprovided with a handle 9 near the operating position Preferably'at itsend is placed the u secondary-shaft 12, driven by thesecondary sprocketWheel 13., To give perfect adjustment to- 'the wall18, the container 15for- {cuttingor cleaning instrument! 16' is connected 'to the shaft' 12by the universal joint. 14.

" Mv device "is particularly. adapted to mosaic" work Where considerablecutting-has tobe done,' and it is evident that the entire surface of avertical Wall can be readily covered by simply "moving the truck'alongparallel thereto at the. proper distance therefrom. This gives greatrigidity to the cleanoperator:and.mak es it simply necessary for him toovercome gravity when the arm 7 is in "an oblique position.

- Ido IIOtllmIt myself f-urther than is indicated in'the claimwhich'follow's.

I claim:

' A motor provided with a shaft an-exteni sible arm onsaid shaftrotatable independently thereof, a sprocket wheel 'on said shaft,

.a sprocket Wheel and shaft and-rotary 'cleaner' on said arm, and acontinuous chain" connecting said sprocket whe'els and adapted to drivesaid cleaner.

ROMANO ROSA, Vi-messes LULA L. BALLWEY,

"KATHERINE ARNE'I'I.

